Home / 12,314.90-18,469.64-3,547.91

Finding the Fourth Proportional to 12,314.90, 18,469.64 and 3,547.91

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Solution

The fourth proportional to 12,314.90, 18,469.64 and 3,547.91 is: 5,321.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,314.90 : 18,469.64 = 3,547.91 : x
  2. Step 2: Convert to fraction form
    12,314.90/18,469.64 = 3,547.91/x
  3. Step 3: Cross multiply
    12,314.90x = 18,469.64 × 3,547.91
  4. Step 4: Simplify right side
    12,314.90x = 65,528,675.50
  5. Step 5: Solve for x
    x = 65,528,675.50/12,314.90
  6. Step 6: Final answer
    x = 5,321.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.